Math 101: Counting, Shapes & Arithmetic

Match the following shapes to their names:

• Square

• 
• Triangle

• 
• Hexagon

• 
• Rectangle

• 
• Circle

• 

Answer explanation

A square has 4 sides and 4 corners. All 4 sides are equal.

A triangle has 3 sides and 3 corners. Its sides can be equal and unequal equal.

A circle does not have any sides or corners. It is round.

A rectangle has 4 sides and 4 corners. It has 2 big sides and 2 small sides.

A hexagon has 6 six sides and six corners. All 6 sides are equal.

Mark all the angles in this triangle.

Answer explanation

This is a scalene triangle.

All 3 sides have different lengths and angles.

What is the missing number?

Tags

CCSS.1.OA.A.1

What is is the missing number?

Tags

CCSS.2.MD.B.6

Reorder the following:

• 121.5

• One hundred

• One Hundred

• 27

Answer explanation

27 - twenty seven

100 - one hundred

121.5 - one hundred and one point five

1,215 - one thousand two hundred and fifteen

What multiplication sentence matches 4+4+4+4+4 ?

• 4 x 5
• 4 x 4
• 20
• 4 x 6

Tags

CCSS.3.OA.A.1

If Jake has 12 fish and then gets 5 times as many fish, how many fish does Jake have now?

Answer explanation

This is a simple 12 times 5 multiplication.

12 x 5 = 60

• Albus

• Gellert

• Both

• Neither

Answer explanation

Neither!

Albus ate half the pizza - that's 3 out of 6 slices.

Gellert only ate 2 out of 6 slices.

How many slices of pizza can you eat in one serving? Can you count them on your fingers?